Reciprocity-gap misfit functional for distributed acoustic sensing, combining data from passive and active sources

dc.citation.firstpageR211en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitleGeophysicsen_US
dc.citation.lastpageR220en_US
dc.citation.volumeNumber86en_US
dc.contributor.authorFaucher, Florianen_US
dc.contributor.authorde Hoop, Maarten V.en_US
dc.contributor.authorScherzer, Otmaren_US
dc.date.accessioned2021-06-07T20:22:41Zen_US
dc.date.available2021-06-07T20:22:41Zen_US
dc.date.issued2021en_US
dc.description.abstractQuantitative imaging of subsurface earth properties in elastic media is performed from distributed acoustic sensing data. A new misfit functional based upon the reciprocity gap is designed, taking crosscorrelations of displacement and strain, and these products further associate an observation with a simulation. In comparison with other misfit functionals, this functional has the advantage of only requiring little a priori information on the exciting sources. In particular, the misfit criterion enables the use of data from regional earthquakes (teleseismic events can be included as well), followed by exploration data to perform a multiresolution reconstruction. The data from regional earthquakes contain the low-frequency content that is missing in the exploration data, allowing for the recovery of the long spatial wavelength, even with very few sources. These data are used to build prior models for the subsequent reconstruction from the higher frequency exploration data. This results in the elastic full reciprocity-gap waveform inversion method, and we illustrate its performance with a pilot experiment for elastic isotropic reconstruction.en_US
dc.identifier.citationFaucher, Florian, de Hoop, Maarten V. and Scherzer, Otmar. "Reciprocity-gap misfit functional for distributed acoustic sensing, combining data from passive and active sources." <i>Geophysics,</i> 86, no. 2 (2021) Society of Exploration Geophysicists: R211-R220. https://doi.org/10.1190/geo2020-0305.1.en_US
dc.identifier.digitalgeo2019-0251-1en_US
dc.identifier.doihttps://doi.org/10.1190/geo2020-0305.1en_US
dc.identifier.urihttps://hdl.handle.net/1911/110689en_US
dc.language.isoengen_US
dc.publisherSociety of Exploration Geophysicistsen_US
dc.rightsAll article content, except where otherwise noted (including republished material), is licensed under a Creative Commons Attribution 4.0 Unported License (CC BY).en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleReciprocity-gap misfit functional for distributed acoustic sensing, combining data from passive and active sourcesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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